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Cisco Catalyst IR1821 industrial router IR1821-K9 Illustration
CiscoCatalyst IR (Industrial)

Catalyst IR1821 industrial router

What does the part number mean?

We confirm configuration, licence and accessories in the quote – ask us if you would like advice.

Our price €2,182 excl. VAT

Available to order · Delivery time given in the quote

No longer sold by the manufacturer Subject to remaining stock. Supported until 2031-02-28. Source ↗

Maximum price – you never pay moreThe quote is never higher – often lower. How the maximum price works
Accessories and supportOptional · 6 groups that fit this model

Compatible accessories and licences

Support and hardware replacement iA support contract (Cisco Smart Net) gives you Cisco TAC around the clock, software updates and a replacement part if the hardware fails – the level decides how fast the part arrives. The contract can run for 1, 3 or 5 years – choose the term in the quote basket. Without one, the manufacturer's standard warranty applies. Read the guide: How Cisco licensing works →1 option
4G/5G module iThe module adds ports to the switch or router. The number is the port count and the letter the speed: G = 1G, X = 10G, Y = 25G, Q = 40G, C = 100G, M = multigigabit copper. Transceivers are ordered separately. Read the guide: Uplink modules – which one? →8 options
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Mounting iBrackets and rails for ceiling, wall or rack. A standard bracket is often included – choose here if you need a different mounting. Read the guide: Which access point? Wi-Fi 6E or Wi-Fi 7 →1 option
Power supply iA second power supply gives redundancy and can raise the switch's total PoE budget. Larger power supplies are needed if many ports must deliver high PoE. Read the guide: PoE – is there enough power? →1 option
Licence iThe licence follows the product and has the same quantity as the hardware. If you are unsure you can skip it – we add the right licence in the quote. Read the guide: How Cisco licensing works →7 options
Transceivers 1G SFP iEvery fibre port needs a transceiver. SR = multimode fibre within the building, LR = single-mode up to 10 km, T = copper (RJ45). Between switches in the same rack a DAC cable (CU) is cheapest. Read the guide: Transceivers and cables – what fits? →22 options
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Multimode (short reach)

Singlemode (long reach)

Copper (RJ45)

CWDM/DWDM

Suggestions are based on Cisco part numbers and datasheets. We check compatibility with your environment before the quote is sent.

Out of stock – this model is no longer sold.

Specifications

Cisco data sheet ↗

The Cisco IR1821-K9 is a router in the Cisco Catalyst IR (Industrial) series. The series has 8 models in our range. Compare all models in the series →

Part number
IR1821-K9
Manufacturer
Cisco
Series
Cisco Catalyst IR (Industrial)

Performance is stated as "up to" according to the manufacturer's datasheet and varies with configuration. See the manufacturer's datasheet for full details. The details are being verified.

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Guides about Catalyst IR1821 industrial router

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Uplink modules – which one?

Catalyst 9200, 9300 and 9300X ship without uplink ports – they sit on a module chosen separately. That lets the switch move from 1G to 10G, 25G or 100G...

More from Cisco Catalyst IR (Industrial)

Compare all models in the series →
CiscoCatalyst IR (Industrial)

Catalyst IR1833 industrial router

IR1833-K9

4 ports · Licence-based throughput – 50 Mbit/s (T0), 250 Mbit/s (T1) or full hardware capacity (T2, requires HSEC)

Accessories are chosen when you add

Our price €2,768 excl. VAT
Total per unit